NFL:San Francisco signed sixth-round cornerback Kenneth Acker of SMU to a four-year deal.

CYCLING

TOUR OF CALIFORNIA: Colombia’s Esteban Chaves won the hilly sixth stage in 100-degree heat at Wrightwood, California, while Britain’s Bradley Wiggins increased his overall lead by 2 seconds.

GIRO D’ITALIA: Nacer Bouhanni of France sprinted to victory on the seventh stage at Foligno, Italy, while Michael Matthews retained the overall lead.

PREP SCHOOLS

SOFTBALL:Layne Patry scored on a walk-off single by Juliet Moore to lift Berwick Academy (5-5) to a 7-6 win over Newton Country Day at South Berwick in their final game of the season. Taylor Lyman and Anna Costentino each had RBI for the Bulldogs; Lyman was also the winning pitcher.

SWIMMING

CHARLOTTE GRAND PRIX:For the first time since his supposed farewell at the 2012 London Olympics, Phelps was atop the podium again – cruising to victory in the 100-meter butterfly at Charlotte, North Carolina. Phelps’ longtime rival Ryan Lochte was on hand, a brace on his left knee.

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